NEW YORK (Standard&Poor's CreditWire) Aug. 24, 2000--Standard&Poor's today assigned preliminary ratings to Tyco International Ltd.'s $2.5 billion and Tyco International Group S.A.'s $3.5 billion shelf registrations filed under SEC Rule 415 (see list below). At the same time, Standard&Poor's affirmed its existing ratings on Tyco International Ltd. and related entities (see list below). The outlook remains negative. Proceeds of the securities to be issued under the shelf registrations are expected to be used to refinance existing debt, to finance recently announced acquisitions, and for general corporate purposes. The ratings reflect Tyco International Ltd.'s leading market positions in telecommunications and electronics, disposable and specialty products, fire and security services, and flow control, as well as